/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2006-02-26     Bernard      first implementation
 * 2006-05-05     Bernard      add two test thread
 * 2006-08-10     Bernard      use rt_show_version to display version information
 * 2008-07-14     Bernard      modify the heap memory init parameter
 */

#include <rthw.h>
#include <rtthread.h>

#include <s3c24x0.h>
#ifdef RT_USING_FINSH
#include <finsh.h>
#endif

extern void rt_hw_interrupt_init(void);
extern void rt_hw_board_init(void);
extern void rt_hw_rtc_init(void);
extern void rt_serial_init(void);
extern void rt_system_timer_init(void);
extern void rt_system_scheduler_init(void);
extern void rt_thread_idle_init(void);
extern void rt_hw_cpu_icache_enable(void);
extern void rt_show_version(void);
extern void rt_system_heap_init(void*, void*);
extern void rt_hw_finsh_init(void);
extern void rt_application_init(void);

extern struct serial_device uart0;
extern struct rt_device uart0_device;
extern struct serial_device uart2;
extern struct rt_device uart2_device;

/**
 * @addtogroup mini2440
 */

/*@{*/
#if defined(__CC_ARM)
    extern int Image$$ER_ZI$$ZI$$Base;
    extern int Image$$ER_ZI$$ZI$$Length;
    extern int Image$$ER_ZI$$ZI$$Limit;
#elif (defined (__GNUC__))
    rt_uint8_t _irq_stack_start[1024];
    rt_uint8_t _fiq_stack_start[1024];
    rt_uint8_t _undefined_stack_start[512];
    rt_uint8_t _abort_stack_start[512];
    rt_uint8_t _svc_stack_start[4096] SECTION(".nobss");
    extern unsigned char __bss_start;
    extern unsigned char __bss_end;
#endif

#ifdef RT_USING_FINSH
extern int finsh_system_init(void);
#endif

/**
 * This function will startup RT-Thread RTOS.
 */
void rtthread_startup(void)
{
    /* enable cpu cache */
    rt_hw_cpu_icache_enable();
    rt_hw_cpu_dcache_enable();

    /* init hardware interrupt */
    rt_hw_interrupt_init();

    /* init board */
    rt_hw_board_init();

    /* show version */
    rt_show_version();

    /* init tick */
    rt_system_tick_init();

    /* init kernel object */
    rt_system_object_init();

    /* init timer system */
    rt_system_timer_init();

    /* init heap memory system */
#ifdef __CC_ARM
    rt_system_heap_init((void*)&Image$$ER_ZI$$ZI$$Limit, (void*)0x33F00000);
#else
    rt_system_heap_init((void*)&__bss_end, (void*)0x33F00000);
#endif

#ifdef RT_USING_MODULE
    /* init module system*/
    rt_system_module_init();
#endif

    /* init scheduler system */
    rt_system_scheduler_init();

#ifdef RT_USING_DEVICE
    /* register uart0 */
    rt_hw_serial_register(&uart0_device, "uart0",
        RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM,
        &uart0);

    /* register uart2, used for RTI debug */
    rt_hw_serial_register(&uart2_device, "uart2",
        RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM,
        &uart2);

#ifdef RT_USING_DFS
    rt_hw_sdcard_init();
#ifdef RT_USING_DFS_UFFS
    rt_hw_nand_init();
#endif
#endif

    /* rtc init */
    rt_hw_rtc_init();
#endif

    /* init application */
    rt_application_init();

#ifdef RT_USING_FINSH
    /* init finsh */
    finsh_system_init();
#ifdef RT_USING_DEVICE
    finsh_set_device("uart0");
#endif
#endif

    rt_system_timer_thread_init();

    /* init idle thread */
    rt_thread_idle_init();

    /* start scheduler */
    rt_system_scheduler_start();

    /* never reach here */
    return ;
}

int main(void)
{
    /* disable interrupt first */
    rt_hw_interrupt_disable();

    /* startup RT-Thread RTOS */
    rtthread_startup();

    return 0;
}

/*@}*/
